# [−][src]Function mynewt::kernel::os::os_mbuf_cmpf

    pub unsafe extern "C" fn os_mbuf_cmpf(
        om: *const os_mbuf,
        off: c_int,
        data: *const c_void,
        len: c_int
    ) -> c_int

Performs a memory compare of the specified region of an mbuf chain against a flat buffer.

- `om`: The start of the mbuf chain to compare.
- `off`: The offset within the mbuf chain to start the comparison.
- `data`: The flat buffer to compare.
- `len`: The length of the flat buffer.

Return: 0 if both memory regions are identical; A memcmp return code if there is a mismatch; INT_MAX if the mbuf is too short.

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